Improved beige machine



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. AM. PHDTLITHB. CU. [LY- (OSBORNES PROCESS) @uitrit tang atrut @ffice- WlLLlAhI- O. LESLIE, OF PHILADELPHIA, PENNSYLVANIA.

letters Patent No. 67,439, dated August 6, 1867.

IMPROVED BRICK MACHINE.

dille .Srigrhulr numb tu in iigsse "giants zitint mit making part ni tip same.

TO ALL WI-IOM IT MAY CONCERN Beit known that I, WILLIAM O. LESLIE, ot' the city of Philadelphia, in the State of Pennsylvania, have invented a new and usefulBrick'Machine; and I do hereby declare the following to be a full and exact description oi" the constructionand operation of the same, reference being had to the. annexed drawings, forming part hereof', in which drawings- Figur-e1' is a perspective view of the machine, the other figures representing parts detached, viz:

Figure 2 is a vertical section of the mixing-tub, showing some ol' the parts enclosed by it in section, sliowing the double screw at the bottom of the tub in perspective, and showing an end elevation of the mould-plungers, with their Vrespective friction-wheels.

Figure 3 is a perspectiveview of the eccentric, `and of a part of the connecting levers by which a reciprocatingmoton is given to the mould-carriage.

Figure 4'is aperspeetive view of the track upon which the friction-wheels of the mould-plunger travel, showing an inclined plane at each end of saidtrack, with intermediate curved projections.

Figure 5is a transverse vertical section of the bedplate upon which the mould-carriage slides, also of` the pressure-plate, the mould-carriage, ay mou'ld, mould-plunger, friction-wheel, and also of the track upon which s aid wheels travel.

Figure 6 is a perspective of the pressure-plate, showing the shape of the two apertures therein, 'and the ends of the knives.

Figure 7 is an enlarged perspective view ofthe mould-plunger.

To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and mode of operation.

In figi 1, a is the foundation of the machine. The parts marked b are the framesto support the gearing; c is the mixing-tub dis a shaft, without vertical support at its lower end, bei-ng suspended fromand having a. bearing in the cross-beam e. The shaft d has rigidly attached to it the radial toothed leversj', knives aand the double screw L. There are four stationary toothed arms i, which areattached to the sides of the tub, only two of said arms appearing in the section. These arms all proceed radially from a hub or centre through which shaft el passes. On shaft Z there is a bevel cog-wheeld, which gears into another bevel cog-wheel k on the'shaft l, which also carries the bevel cog-wheel m, which gears into the bevel cog-wheel n on one end of the shaft o, which at its other end has a cog-wheel, p. There are two other cog-wheels similar top, arranged in line below p, the lowermost of the series being on `one end of the driving-shaft g. r is an eccentric on the driving-shaft g. Saidveccentric is connected by a loose-joint to the lever s, which is connected with the rod t, which is connected with the mould-carriage u. z' u' are the bed-plates upon which the mould-carriage u slides. w-w 102203 are the moulds; azx :11.21113 the mouldplungers. Each plunger is provided with a friction-wheel y. z is the track, extending between and parallel tothe bed-plates t' u', The friction-wheels y move upon the track z. Each of the mould-plungers :e a" :a2 fr is faced with felt or heavy cloth of wool, as shown in fig.' 7, the object being to facilitate the Aremoval ofthe bricks from Vthe plungers when the bricks are ready for deliverygaud to obviate the necessity of using sand or oil. I prefer to make the plungers ot' cast iron, and to fasten the felt or cloth to the face thereof` with plumbers' solder. v1 is the pressure-plate, which is fastened on the top of the bed-plates v 11' This plate 1 has in it two apertures .2 and 3, formed as shown in fig. ti. The lower side of plate 1 is made con vex, and the upper side of the mould-carriage is made correspondingly concave, as shown in tig. 5. 4 and 5 are knives,v the edges ot' which have a convexity corresponding to that of plate 1, and I prefer to set them in said Vplate diagonally. They are of steel, made to fit and slide each into an aperture, (i, slightly tapered on the sides,

so' as to be firm, and also removable, as occasion may require.

The operation ofthe machine may be described as follows: The mixing-tub c is first filled with clay, as it is dug from the pit,vand then the machine is set in motion. The clay is thoroughly crushed or brokcninto small particles, and partially mixed by the action-of the toothed radial leversfand thestationary toothedtarms i. It is still further mixed and is pressed downward by the knives g, the blades of which are adjustable, being set horizontal, or with more or-less Obliquity, to suit the qualityV ofthe clay. These knives thus perform the double oflice ofv mixing the clay and pressing it downward until it is acted upon by the double screw h, which forces 1t into the moulds w w w2 w", lling them as they are presented. There are two or more moulds in each end of the carriage u, which has given to it by the eccentric -r :L reciprocating motion whereby the moulds in one end and those in the other end of the carriage are alternately brought under the screw h to be filled. While the moulds in one end are being thus filled, those in the other end of the carriage have pnssed'from under the pressure-plete, and are in position to deliver their bricks. The plungers e' rv :ci a?, when made of iron, have considerable weight; they fit the moulds closely, and move freely therein in :t vertical direction, :is the plungers pass along on the track, their own gravity being sutiicient to give them the necessary downward motion, while.

their upward motion is given to them by the projections 7 8 9 l0 on the track. `As soon as the moulds w wl are lled, the carriage 1t stztrtsitowcrds the plnce ofdelivery for these moulds; the clay in snid moulds then receives its irst pressure against the convex surface of theQpressu're-plcte, by renson of thc projection Y. As the moulds pass under the aperture 2, the clay is relieved from pressure, and rises u. little in the moulds; the knife-4 shaves off the superuous clay es the moulds pass under it; the clziy in the moulds then receives a. second pressure, which is occasioned by the projection 8; the plnngers are finally again forced up, and kept up by the inclined plane 11 at the end of' the track, ush with the top of the track, and the brick delivered' in n finished statte. A similar action tnkes place in regard to the moulds wi w", which, when. filled7 pass in nn opposite direction over the projections 9 and 10 and inclined plane 1 2. While they are being filled, the moulds have n slight pause,

' which is occasioned by the loose joint shown in iig. 3, by which the eccentric r is connected with thelever S.

All'the parts ofthe machine except es otherwisespccified are made of iron.

Having thus described my invention, I claim, und desire to'secure by Letters Patent"- 1. vThe mould-carriage u, constructed and operating substantially as shown and described. 2. The pressure-plate 1, constructed and operating substantially as shown and described. 3. The track z, constructed and operating substantiallyl es shown-and described. 4, Making the under side of the pressure-plate 1 convex, und the upper side of the mould-carriage u cor.

respondingly concave, substantially ns shown and described.

y WM. O. LESLIE.

Witnesses:

FRANKLIN SMALL, GEO. E. BUeKLEr. 

